Air tight seal, non-toxic leaching additives into your food.Thanks to this unique property, it can be used on fresh cut food, fruits or vegetables like: egg plants, salads, tomatoes, onions, cabbages, pineapples, apples, pears, kiwis and even for watermelons. No more shrink wrap! SHOP NOW - https://www.amazon.com/12-Pack-Reusable-Expandable-Airtight-Silicone/dp/B07DY5MB8B